CN106194140B - Shaft bottom water drainage gas production device and its method - Google Patents
Shaft bottom water drainage gas production device and its method Download PDFInfo
- Publication number
- CN106194140B CN106194140B CN201610738239.8A CN201610738239A CN106194140B CN 106194140 B CN106194140 B CN 106194140B CN 201610738239 A CN201610738239 A CN 201610738239A CN 106194140 B CN106194140 B CN 106194140B
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- Prior art keywords
- gas
- shaft bottom
- closed burner
- natural gas
- water pumping
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000007789 gas Substances 0.000 claims abstract description 93
- 239000003345 natural gas Substances 0.000 claims abstract description 53
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 241000521257 Hydrops Species 0.000 claims abstract description 23
- 206010030113 Oedema Diseases 0.000 claims abstract description 23
- 238000010992 reflux Methods 0.000 claims abstract description 19
- 239000000567 combustion gas Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000005065 mining Methods 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 26
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 244000264242 Descurainia sophia Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The present invention provides a kind of shaft bottom water drainage gas production device, including casing, oil pipe, closed burner and ignition control device, the oil pipe is located in casing, the closed burner is located in oil pipe, it is connected with combustion gas discharge pipe at the top of the closed burner, the combustion gas discharge pipe extends upwardly to outer wellhead；The closed burner bottom is connected with air injection tube line and natural gas reflux pipeline, and the natural gas reflux pipeline is also connected to casing；The air injection tube line extends upwardly to outer wellhead；The ignition control device is located at the bottom in closed burner.Air and natural gas are enclosed in the shaft bottom hydrops of surrounding, it are made to be vaporizated into vapor in closed burner through ignition control device ignition, heating；Exhaust gas and vapor after burning go out pit shaft with natural gas mining together.Mining tubing string oil pipe is added and applies insulating layer to ensure that shaft bottom hydrops is the discharge pit shaft in the form of vapor is gaseous.
Description
Technical field
Patent of the present invention belongs to gas field gas well water pumping gas production field, more particularly to a kind of shaft bottom water drainage gas production device and its side
Method.
Background technology
Gas field gas well exploits the middle and later periods, and shaft bottom hydrops occurs in the gas well of larger proportion, causes gas well yield to reduce and even stops
Production.Traditional drainage gas production technology or need is external to provide energy to change the ability that gas takes liquid, or is changed by tool research and development
Become the fluidised form of gas-liquid flow, or change air water phase by the way that medicament is added to realize the purpose of water pumping gas production, but there are certain
Application limitation, cannot extensive use on, gas well that gas production is different different in shaft bottom hydrops amount.Gas field gas well water pumping gas production
There is an urgent need to one kind for aspect with relatively broad applicability, and without the extraneous energy supply that excessively provides to can be realized continuously
The drainage gas production technology of property.
Invention content
The external energy that provides is needed to be researched and developed to change the ability that gas takes liquid, or by tool in existing water pumping gas production in order to overcome
Change the fluidised form of gas-liquid flow, or by addition medicament change air water phase to realize water pumping gas production, it cannot be to shaft bottom hydrops amount not
The problem of gas well same, gas production is different carries out water pumping gas production, shaft bottom water drainage gas production device provided by the invention, patent of the present invention
Purpose be by change shaft bottom hydrops water physical state thinking, by shaft bottom burn gas well it is self-produced go out natural gas to well
Bottom hydrops is heated, it is made to be vaporizated into vapor, under the premise of ensureing that temperature in wellbore diffusion is unlikely to keep vapor liquefied,
Make combustion product gases that pit shaft be discharged with natural gas with vapor, realizes the purpose of water pumping gas production.
The technical solution adopted by the present invention is：
Shaft bottom water drainage gas production device, including casing, oil pipe, closed burner and ignition control device, the oil pipe position
In in casing, the closed burner is located in oil pipe, and combustion gas discharge pipe is connected on the closed burner top,
The combustion gas discharge pipe extends upwardly to outer wellhead；The closed burner bottom is connected with air injection tube line and natural gas
Reflux pipeline, the natural gas reflux pipeline are also connected to casing；The air injection tube line extends upwardly to outer wellhead；
The ignition control device is located at the bottom in closed burner.
It is coated with insulating layer in the oil pipe.
It is provided with check-valves on the combustion gas discharge pipe.
It is provided with gas control equipment on the natural gas reflux pipeline.
The gas control equipment is gas flowmeter.
The closed burner is combustion barrel.
The ignition control device includes at least controller and igniter, and the controller is electrically connected with igniter.
A kind of shaft bottom water pumping gas production method, includes the following steps：
The closed burner that step 1 enters from ground downwards to shaft bottom injects air；
Step 2 is to the closed burner re-injection natural gas in shaft bottom；
Step 3 air and natural gas are enclosed in closed burner through ignition control device ignition, heating
The shaft bottom hydrops of surrounding, makes it be vaporizated into vapor；
Exhaust gas and vapor after step 4 burning go out pit shaft with natural gas mining together.
Air is injected to closed burner by air injection tube line in the step 1.
By natural gas reflux pipeline to closed burner re-injection natural gas in the step 2.
Beneficial effects of the present invention are：
Closed internal combustion device is used in technique provided by the invention, and air is injected by ground and realizes pit shaft from producing natural gas
Burning is controlled by gas control equipment and is burnt, and then indirectly heat shaft bottom hydrops, so that its vaporization is formed vapor, to well
Under conditions of cylinder takes Insulation, pit shaft is discharged with natural gas with vapor in combustion product gases.
The present invention is further detailed below with reference to attached drawing.
Description of the drawings
Fig. 1 is shaft bottom water drainage gas production device schematic diagram.
In figure, reference numeral is：1, natural gas；2, casing；3, oil pipe；4, air injection tube line；5, gas control equipment；
6, natural gas reflux pipeline；7, combustion gas discharge pipe；8, closed burner；9, ignition control device；10, reservoir.
Specific implementation mode
Embodiment 1：
The external energy that provides is needed to be researched and developed to change the ability that gas takes liquid, or by tool in existing water pumping gas production in order to overcome
Change the fluidised form of gas-liquid flow, or by addition medicament change air water phase to realize water pumping gas production, it cannot be to shaft bottom hydrops amount not
The problem of gas well same, gas production is different carries out water pumping gas production, the present invention provide a kind of water pumping gas production dress in shaft bottom as shown in Figure 1
It sets, the purpose of patent of the present invention is the thinking by changing shaft bottom hydrops water physical state, self-produced by shaft bottom burning gas well
The natural gas gone out heats shaft bottom hydrops, it is made to be vaporizated into vapor, ensureing that temperature in wellbore is spread is unlikely to that water is made to steam
Under the premise of gas liquefaction, make combustion product gases that pit shaft be discharged with natural gas with vapor, realizes the purpose of water pumping gas production.
Shaft bottom water drainage gas production device, including casing 2, oil pipe 3, closed burner 8 and ignition control device 9, the oil
Pipe 3 is located in casing 2, and the closed burner 8 is located in oil pipe 3, and the closed burner is connected with combustion gas on 8 top
Discharge pipe 7, the combustion gas discharge pipe 7 extend upwardly to outer wellhead；8 bottom of closed burner is connected with air injection
Pipeline 4 and natural gas reflux pipeline 6, the natural gas reflux pipeline 6 are also connected to casing 2；The air injection tube line 4
Extend upwardly to outer wellhead；The ignition control device 9 is located at the bottom in closed burner 8.
Exhaust gas and vapor after step 4 burning go out pit shaft with 1 mining of natural gas together.
Step provided by the invention is equipped with casing 2 before work in the well on reservoir 10,2 the inside of casing is equipped with oil pipe
3, closed burner 8 is located in oil pipe 3, is then connected each road pipeline and is carried out operation.
First inject air, then the re-injection natural gas 1 into closed burner 8 into closed burner 8, air with it is natural
Gas 1, through 9 ignition of ignition control device, the shaft bottom hydrops surrounded outside closed burner 8 is added in closed burner 8
Heat boiling makes its vaporization.Exhaust gas after burning is discharged into oil pipe 3, and pit shaft is discharged with natural gas 1 and vapor.And then the row of realization
The purpose of hydromining gas.
Embodiment 2：
On the basis of embodiment 1, insulating layer is coated in oil pipe 3 described in the present embodiment.
The closed burner is connected with combustion gas discharge pipe 7 on 8 top, is provided on the combustion gas discharge pipe 7
Check-valves.
8 bottom of closed burner is connected with air injection tube line 4 and natural gas reflux pipeline 6, the natural gas
Reflux pipeline 6 is also connected to casing 2, and gas control equipment 5 is provided on the natural gas reflux pipeline 6.
The gas control equipment 5 is gas flowmeter.
The closed burner 8 is combustion barrel.
The ignition control device 9 includes at least controller and igniter, and the controller is electrically connected with igniter.
The ignition control device 9 includes at least controller and igniter, and the controller is electrically connected with igniter；It is described
Ignition control device 9 is located at the bottom in closed burner 8.The ignition control device 9 in monitoring well bottom head of liquid,
Automatic ignition after hydrops fluid column reach a certain height when shaft bottom, heating evaporation shaft bottom hydrops, when shaft bottom hydrops discharge to a certain degree,
Head of liquid is reduced to shaft bottom air-flow that can realize that ignition control device 9 is realized flame-out from when taking liquid output.
As shown in Figure 1, shaft bottom water drainage gas production device provided by the present invention, passes through natural gas 1, casing 2, oil pipe 3, air
Inject pipeline 4, gas control equipment 5, natural gas reflux pipeline 6, combustion gas discharge pipe 7, closed burner 8, ignition control
Device 9 and reservoir 10 carry out operation.Air is injected through gas control equipment 5 from ground by air injection tube line 4, passes through day
Right gas reflux pipeline 6 is through 5 re-injection natural gas 1 of gas control equipment, and air is with natural gas 1 through igniting in closed burner 8
The shaft bottom hydrops ebuillition of heated surrounded outside closed burner 8 is made its vaporization by 9 ignition of control device.It is useless after burning
Gas is discharged into oil pipe through combustion gas discharge pipe 7, and pit shaft is discharged with natural gas 1 and vapor.And then realize the mesh of water pumping gas production
's.
Whether the gas control equipment 5 can be by lighting a fire, and then to control in the closed burner in real-time monitoring well bottom 8
The injection rate of natural gas 1 and air, and realize continuous gas supply ensuring to inject under the premise of oxygen is clean-burning in air.It is described
Closed burner 8 is that combustion barrel effect is that control gas burning occurs only inside it, prevents the oxygen in the air of injection well bottom
Gas diffuses to pit shaft, generates the risk of pit shaft explosion.
Embodiment 3：
A kind of shaft bottom water pumping gas production method, including following step are provided on the basis of above-described embodiment, in the present embodiment
Suddenly：
The closed burner 8 that step 1 enters from ground downwards to shaft bottom injects air；
Step 2 is to the closed 8 re-injection natural gas 1 of burner in shaft bottom；
Step 3 air and natural gas 1 surround in closed burner 8 through 9 ignition of ignition control device, heating
In the shaft bottom hydrops of surrounding, it is made to be vaporizated into vapor；
Exhaust gas and vapor after step 4 burning go out pit shaft with 1 mining of natural gas together.
Air is injected to closed burner 8 by air injection tube line 4 in the step 1.
By natural gas reflux pipeline 6 to 8 re-injection natural gas 1 of closed burner in the step 2.
Air is injected through gas control equipment 5 from ground by air injection tube line 4, is passed through by natural gas reflux pipeline 6
5 re-injection natural gas 1 of gas control equipment, air is lighted a fire in closed burner 8 through ignition control device 9 with natural gas 1 to be fired
It burns, the shaft bottom hydrops ebuillition of heated surrounded outside closed burner 8 is made into its vaporization.Exhaust gas after burning is through combustion gas discharge pipe
7 are discharged into oil pipe, and pit shaft is discharged with natural gas 1 and vapor.And then realize the purpose of water pumping gas production.
Whether the gas control equipment 5 can be by lighting a fire, and then to control in the closed burner in real-time monitoring well bottom 8
The injection rate of natural gas 1 and air, and realize continuous gas supply ensuring to inject under the premise of oxygen is clean-burning in air.
The closed burner 8 is that combustion barrel effect is that control gas burning occurs only inside it, prevents injection well
Oxygen in the air of bottom diffuses to pit shaft, generates the risk of pit shaft explosion.
The ignition control device 9 includes at least controller and igniter, and the controller is electrically connected with igniter；It is described
Ignition control device 9 is located at the bottom in closed burner 8.
The ignition control device 9 is in monitoring well bottom head of liquid, after when shaft bottom, hydrops fluid column reach a certain height certainly
Dynamic igniting, heating evaporation shaft bottom hydrops, when shaft bottom hydrops is discharged to a certain degree, head of liquid is reduced to shaft bottom air-flow that can realize certainly
When taking liquid output, ignition control device 9 is realized flame-out.
As described above, being only the rough embodiment of the present invention, limit in any form not is made to the principle of the present invention
System.Any simple modification or modification that all technologies according to the present invention substantially make said program, still fall within this hair
In bright technical proposal scope, the apparatus structure of non-specified otherwise, is existing apparatus in the present invention, will be without in the present invention
It describes one by one.
Claims (9)
1. shaft bottom water pumping gas production method, it is characterised in that：The shaft bottom water drainage gas production device that this method uses includes casing（2）, oil
Pipe（3）, closed burner（8）And ignition control device（9）, the oil pipe（3）Positioned at casing（2）It is interior, the closed burning
Device（8）Positioned at oil pipe（3）It is interior, the closed burner（8）Combustion gas discharge pipe is connected on top（7）, the combustion gas
Discharge pipe（7）Extend upwardly to outer wellhead；The closed burner（8）Bottom is connected with air injection tube line（4）With it is natural
Gas reflux pipeline（6）, the natural gas reflux pipeline（6）Also with casing（2）Connection；The air injection tube line（4）To
On extend to outer wellhead；The ignition control device（9）Positioned at closed burner（8）Interior bottom；Shaft bottom water pumping gas production
Method the specific steps are：
Step 1 enters the closed burner to shaft bottom from ground downwards（8）Inject air；
Step 2 is to the closed burner in shaft bottom（8）Re-injection natural gas（1）；
Step 3 air and natural gas（1）In closed burner（8）It is middle through ignition control device（9）Ignition, heating packet
It is trapped among the shaft bottom hydrops of surrounding, it is made to be vaporizated into vapor；
Exhaust gas and vapor after step 4 burning is together with natural gas（1）Mining goes out pit shaft.
2. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：The oil pipe（3）Inside it is coated with insulating layer.
3. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：The combustion gas discharge pipe（7）On set
It is equipped with check-valves.
4. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：The natural gas reflux pipeline（6）On
It is provided with gas control equipment（5）.
5. water pumping gas production method in shaft bottom according to claim 4, it is characterised in that:The gas control equipment（5）For gas
Flowmeter body.
6. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：The closed burner（8）For combustion
Burn cylinder.
7. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：The ignition control device（9）At least
Including controller and igniter, the controller is electrically connected with igniter.
8. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：It is injected by air in the step 1
Pipeline（4）To closed burner（8）Inject air.
9. water pumping gas production method in shaft bottom according to claim 1, it is characterised in that：It is returned by natural gas in the step 2
Flow tube line（6）To closed burner（8）Re-injection natural gas（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738239.8A CN106194140B (en) | 2016-08-29 | 2016-08-29 | Shaft bottom water drainage gas production device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738239.8A CN106194140B (en) | 2016-08-29 | 2016-08-29 | Shaft bottom water drainage gas production device and its method |
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| Publication Number | Publication Date |
|---|---|
| CN106194140A CN106194140A (en) | 2016-12-07 |
| CN106194140B true CN106194140B (en) | 2018-09-04 |
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| CN201610738239.8A Active CN106194140B (en) | 2016-08-29 | 2016-08-29 | Shaft bottom water drainage gas production device and its method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111577245B (en) * | 2020-05-19 | 2023-03-28 | 成都佳广知科技有限公司 | Intelligent water lifting gas production system and method for natural gas well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2321731C2 (en) * | 2006-05-02 | 2008-04-10 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ВолгоградНИПИморнефть" ООО "ЛУКОЙЛ-ВолгоградНИПИморнефть" | Oil field development method (variants) |
| CN201884015U (en) * | 2010-12-10 | 2011-06-29 | 中国石油天然气股份有限公司 | Liquid drainage and gas production system for gas wells |
| CN102230372A (en) * | 2011-06-24 | 2011-11-02 | 中国海洋石油总公司 | Thermal recovery technology of multielement thermal fluid of thickened oil well |
| CN103573232B (en) * | 2013-11-01 | 2019-06-18 | 栾天 | Secondary steam heats pressurization directly spray device |
| CN105134152B (en) * | 2015-08-24 | 2018-02-09 | 中国石油大学(北京) | A kind of method and system using heating power jet exploitation of gas hydrate |
| CN206190273U (en) * | 2016-08-29 | 2017-05-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Shaft bottom water -discharging and gas -producing unit |
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| CN106194140A (en) | 2016-12-07 |
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Effective date of registration: 20211013 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. Address before: 710018 room 1207, Changqing building, xinglongyuan community, Changqing, Xi'an, Shaanxi Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |